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Finding the Fourth Proportional to 720,059.62, 1,080,085.56 and 293,593.81

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Solution

The fourth proportional to 720,059.62, 1,080,085.56 and 293,593.81 is: 440,389.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,059.62 : 1,080,085.56 = 293,593.81 : x
  2. Step 2: Convert to fraction form
    720,059.62/1,080,085.56 = 293,593.81/x
  3. Step 3: Cross multiply
    720,059.62x = 1,080,085.56 × 293,593.81
  4. Step 4: Simplify right side
    720,059.62x = 317,106,434,686.38
  5. Step 5: Solve for x
    x = 317,106,434,686.38/720,059.62
  6. Step 6: Final answer
    x = 440,389.14

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.